Showing structure for methyl (1r,4r,6r,8r,9r,10r)-8-hydroxy-6-isopropyl-9-methyl-13-methylidene-5-oxo-15-oxatetracyclo[6.6.1.0¹,¹⁰.0⁴,⁹]pentadec-2-ene-3-carboxylate